1020120477 has 8 divisors (see below), whose sum is σ = 1389100416. Its totient is φ = 665610432.

The previous prime is 1020120473. The next prime is 1020120487. The reversal of 1020120477 is 7740210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020120477 - 2² = 1020120473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3617308 + ... + 3617589.

It is an arithmetic number, because the mean of its divisors is an integer number (173637552).

Almost surely, 2^1020120477 is an apocalyptic number.

It is an amenable number.

1020120477 is a deficient number, since it is larger than the sum of its proper divisors (368979939).

1020120477 is an equidigital number, since it uses as much as digits as its factorization.

1020120477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234947.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 1020120477 is about 31939.3249302486. The cubic root of 1020120477 is about 1006.6623403149.

Adding to 1020120477 its reverse (7740210201), we get a palindrome (8760330678).

The spelling of 1020120477 in words is "one billion, twenty million, one hundred twenty thousand, four hundred seventy-seven".